Button-placing-finger control.



A. W, BUEHLER. BUTTON PLACING FINGER CONTROL.

. APPLICATION FILED AUG-I4, 1916.

Patented Mar. 27, 1917.

INVENTUE ETTE STATES PATENT FFTOEQ ALBERT W. BUEI-ILER, OF TOLEDO, OHIO,ASSIGNOR TO THE TOLEDO BUTTON IIACI-IINE' COMPANY, OF TOLEDO, OHIO, ACORPORATION OF OHIO.-

BUTTON -PI1ACING-FIN GER, CONTROL.

Specification of Letters Patent.

Patented Mar. 27, 1917.

To all whom it may concern:

Be it known that I, ALBERT WV. BUEHLER, a citizen of the United States,and a resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Button-Placing-Finger Control; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

This invention relates to shoe button fastening machines, andparticularly to means for raising the button placing finger from buttonengaging position during each return movement thereof, and has for itsob ject the provision of simple and improved means for this purpose.

The invention is fully described in the following specification, andwhile, in its broader aspect, it is capable of embodiment in numerousforms, a preferred embodiment thereof is illustrated in the accompanyingdrawings, in which' Figure 1 is a front top perspective view of amachine embodying the invention, with the operating parts in normalposition. Fig. 2 is a different perspective view thereof, with thebutton placing finger in engagement with a button and at the limit ofits button placing movement, and Fig. 3 is a side elevation thereof,with the button placing finger partially retracted from button settingposition.

Referring to the drawings, 1 designates the customary button placingfinger for machines of the character described, which finger pivotallyprojects forward and downward from the upper end of a rocker-arm 2, thefinger being yieldingly retained in lowered button engaging position bya spring 3, as is well understood in the art.

The wire feed lever 4 of the machine is pivoted to the frame-head 5, asat 6, and carries a jaw 7 at its outer end for coacting with the leverend to releasably grip a wire 8 to effect a predetermined forwardfeeding movement thereof at each stroke of the lever, as is common withmachines of this class.

A cam-plate 9 is hinged, as at 10, to the forward end portion of theframe-head 5 for vertical rocking movements relative thereto. Thiscam-plate, when lowered from the elevated position in which it isnormally held by the spring 11, is adapted to ooact at its forward endwith a finger 12 on the wire gripping jaw 7 at any point in a movementof the. jaw to release the wire 8, as is fully described and claimed inapplication Serial No. 68,868, filed December 27, 1915, by Le- Dru R.Pomeroy.

The cam-plate 9 has an inwardly extending arm 13 at the end thereofadjacent to the button placing finger .1, and the free end of' this' armis transversely angled to form the rearwardlyinclined cam surface 14:under the placing finger 1 between the ends thereof.

Should the button placing-finger l have a forward button placingmovement when a button is not in engagement with its lower end, thefinger will swing downward sufficiently for a shoulder or tooth 15 onthe lower edge thereof to engage the upper rear edge of the cam surface1& and cause a forward rocking of the cam-plate 9 during the continuedforward movement of the finger. It will be understood that this movementof the cam-plate elfects a release of the wire feed jaw 7, as fullydescribed in said former application.

A feature of the present invention consists in pivotally mounting a dog16 in normally pendant relation on the placing finger 1, which, in aforward button placing movement of said finger, is drawn over the top ofthe cam surface 14.- and then drops in pendant relation in advancethereof, as shown in Fig. 2. A lug 17 projects from the upper inner endof the dog 16 over the top edge of the finger and coacts therewith tolimit the forward swinging movement of the dog with respect to thefinger, as is apparent. On the return stroke of the placing finger thelower end of the dog 16 engages and rides up the cam surface 14 andraises the finger so it will not drag against the next button in order,as shown in Fig. 3. The dog passes over and drops at the rear side ofthe cam surface 14: by the time the finger has returned to the limit ofits rearward stroke, thereby permitting the nose of the placing fingerto lower into engagement with the top of the next button to be fedforward.

It is evident that I have provided simple and efficient means, for usein conjunction with the button placing finger and wire feed stop meansof a button setting machine, for automatically raising the placingfinger from button engaging position at each retracting movementthereof.

I wish it understood that while I have particularly described and shownmy invention, I do not wish to be limited to the specific construction,arrangement or form of the parts or elements shown, as it is capable ofnumerous modifications without departing from the spirit of the claims.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine of the class described, a button placing finger, wirefeed release means, and means coacting with said finger and first meansto cause a raising of the finger from button engaging position during aretracting movement thereof.

2. The combination with a button plac ing finger in a machine of theclass described, of an inclined cam surface below said finclined camsurface below said fingerint'en mediate its ends and havingpredetermined movements imparted thereto by said finger 7 when thefinger is moved forward free from engagement with a button, and a odogpivoted to said finger for limited swinging movements relative thereto.and operable at each rearward stroke of the finger to coact with saidcam surface and raise the'finger from button engaging position during aportion of such rearward stroke of the finger.

In testimony whereof I have hereunto signed my name to thisspecification.

ALBERT w. BUEHLER.

Washington, D. G.

' Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

